CVE-2023-51791

Buffer Overflow vulenrability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to execute...

7.8 HighFix available

Buffer Overflow vulenrability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to execute arbitrary code via the libavcodec/jpegxl_parser.c in gen_alias_map.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.27%Up 0.2 points since Apr 20, 2024

What each source reports

CVE List Score used 7.8

Buffer Overflow vulenrability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to execute arbitrary code via the libavcodec/jpegxl_parser.c in gen_alias_map.

Record: CVE-2023-51791
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-125
Updated: 2026-11-02

EUVDEUVD-2023-56475 7.8

Buffer Overflow vulenrability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to execute arbitrary code via the libavcodec/jpegxl_parser.c in gen_alias_map.

Record: EUVD-2023-56475
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-4rw9-59ch-c9mh 7.8

Buffer Overflow vulenrability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to execute...

Buffer Overflow vulenrability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to execute arbitrary code via the libavcodec/jpegxl_parser.c in gen_alias_map.

Record: GHSA-4rw9-59ch-c9mh
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-121, CWE-125
Updated: 2026-11-02

NVD 7.8

Buffer Overflow vulenrability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to execute arbitrary code via the libavcodec/jpegxl_parser.c in gen_alias_map.

Record: CVE-2023-51791
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-125
Updated: 2026-11-02

OSV 7.8

Buffer Overflow vulenrability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to execute arbitrary code via the libavcodec/jpegxl_parser.c in gen_alias_map.

Record: CVE-2023-51791
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-07

OSVDEBIAN-CVE-2023-51791 7.8

Buffer Overflow vulenrability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to execute arbitrary code via the libavcodec/jpegxl_parser.c in gen_alias_map.

Record: DEBIAN-CVE-2023-51791
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVJLSEC-2026-634 7.8

Buffer Overflow vulenrability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to execute arbitrary code via the libavcodec/jpegxl_parser.c in gen_alias_map.

Record: JLSEC-2026-634
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2023-51791 7.8

Buffer Overflow vulenrability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to execute arbitrary code via the libavcodec/jpegxl_parser.c in gen_alias_map.

Record: UBUNTU-CVE-2023-51791
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`ffmpeg` Debian:13	before 7:7.0.1-3	7:7.0.1-3
`ffmpeg` Debian:14	before 7:7.0.1-3	7:7.0.1-3
`FFMPEG_jll` Julia	7.1.0+0 up to 8.1.0+0	8.1.0+0
`FFMPEG_nogpl_jll` Julia	before 8.1.0+0	8.1.0+0
`FFplay_jll` Julia	7.1.0+0 up to 8.1.2+0	8.1.2+0
`libav` Ubuntu:Pro:14.04:LTS	All versions, plus listed versions 6:0.8.7-1ubuntu26:9.10-1ubuntu16:9.10-1ubuntu26:9.10-1ubuntu56:9.10-1ubuntu6 Show 9 moreShow less 6:9.10-1ubuntu76:9.11-2ubuntu16:9.11-2ubuntu26:9.13-0ubuntu0.14.04.16:9.14-0ubuntu0.14.04.16:9.16-0ubuntu0.14.04.16:9.18-0ubuntu0.14.04.16:9.20-0ubuntu0.14.04.16:9.20-0ubuntu0.14.04.1+esm1	None known

History

History
Recorded	Changed	Sources
Nov 6, 2026	facts	OSV
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-51791 is a high vulnerability (CVSS 7.8) in Ffmpeg, published April 19, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 19th percentile. Fixed in ffmpeg 7:7.0.1-3.

References

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